Nord-Lock, part of the Nord-Lock Group, first introduced its innovative wedge-locking technology in 1982. Now, the company is again breaking new ground by announcing the addition of CE marking to its wedge-locking washers. Today, no other global supplier offers CE-marked securing washers — an accomplishment that puts Nord-Lock in a unique position in the building…
What is the load transfer factor?
~ Article courtesy of Nord-Lock Group When using hydraulic bolt tensioners to induce a controlled preload into a bolted joint, several key factors including the load transfer factor need to be examined. This is key in ensuring the selected tooling can provide a load greater than the required preload of the joint to overcome any…
What to consider when reusing bolted joints?
Article courtesy of NordLock A bolt is installed in a factory without lubrication and everything works fine… until the first time the bolt is removed and reused. Then, the problems start. Why? In the design process, an engineer sets the preload range for a joint (as shown in Figure 1) so the parts don’t open…